Preparation method and application of organic acid activated calcium-based heat carrier

An organic acid, calcium-based technology, applied in the field of preparation of calcium-based heat carrier, can solve the problem of difficulty in suppressing sintering of heat carrier, and achieve the effect of stable pore structure and sintering inhibition.
CN114149792APending Publication Date: 2022-03-08HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2022-03-08

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Abstract

The invention relates to the technical field of energy storage materials, in particular to a preparation method and application of an organic acid activated calcium-based heat carrier. The method comprises the following steps: obtaining quicklime powder; the quicklime powder is gradually fed into the organic acid solution until the pH value of the organic acid solution meets the preset pH value, and a mixed solution is obtained; stirring and heating the mixed solution to obtain a precursor; carrying out first calcination on the precursor to obtain a modified calcium-based heat carrier; wherein the organic acid solution comprises at least one of glycine, citric acid, alanine, formic acid, acetic acid and oxalic acid; the application comprises the following steps: applying the calcium-based heat carrier prepared by the method to a circular reaction of a concentrating solar power generation technology; the method comprises the following steps: activating organic acid in quicklime powder of a calcium-based heat carrier raw material, controlling the pH value of a first mixed solution, stirring and heating to form a precursor, and calcining for the first time, thereby reducing the temperature of the first calcining and preventing the calcium-based heat carrier from being sintered under a high-temperature condition.
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Description

technical field

[0001] This application relates to the technical field of energy storage materials, in particular to a preparation method and application of an organic acid-activated calcium-based heat carrier. Background technique

[0002] The research and development of energy storage technology has always been valued by the energy, transportation, electric power, telecommunications and other departments of various countries. Among them, after the energy storage link is introduced into the power system, the demand side management can be effectively realized, which not only makes more effective use of power equipment, reduces The cost of power supply can also promote the application of renewable energy, and can also be used as a means to improve system operation stability, adjust frequency, and compensate for load fluctuations.

[0003] However, the current concentrating solar thermal power generation technology is still limited by the intermittent and unstable solar energy...

Claims

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